Tool brace



April 5,1927. 1,623,541

v R. D. H uTsoN Filed Nov. 249. 1924 Patented Apr. 5, 1927.

UNITED YSTATES PAT-ENT f orifice.

ROY DOW HUTSON, OF ROSENDALE, MISSOURI.

TOOL BRACE..

`Application led November 29, 1924. Serial No. 752,908.

This invention relates to certain iniprovefv construction and in the combination and arrangement of the several parts of my improved tool brace whereby certain important advantages are attained andthe device ren-4 dered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

ln order that my invention may be the 1' better understood,'l will now proceed to describe the same with reference to the accompanying drawings, wherein Figure 1 is a view in elevation ofthe tool brace constructed in accordance with an embodiment of my invention;

Figure 2 is a fragmentary View partly in section and partly in elevation of the device as herein disclosed; f

Figure 3 is a sectional view tak-en substantially on'the line 3-3 of Figure 2.

As disclosed in the accompanying draw* ings, l denotes an elongated tubular stock having its periphery serrated or otherwise roughened and in swivelled connection, as at 2, and to the outer end portion vof the stock l is the operating crank 3. The end portion of the stock 1 adjacent to the crank 3 extends Vwithin a suitable bearing 4 carried by the crank 3, that portion of the stock 1 within the bearing l comprising a toothed wheel 5 with which are adapted to. engage the pawls 6 arranged at either side of the crank 3 or more particularly the bearing'll whereby the stock 1 may be intermittently rotated in either direction and which lis particularly desirable in connection with close work.

Freely insertible Vwithin the opposite end portion of the stock 1 and having movement lengthwise thereof is a shank 7 of desired length and whichis provided at its outer end with a chuck 8. The chuck 8 is of a well-known type and is adapted to operatively hold a speed wrench bit or otheiV tool bit of desired type. y

The shank 7 is provided in its periphery vwith the oppositely arranged spiral grooves 9 extending lengthwise thereof and in each of which is adapted to be selectively engaged eitherof the pawls 10 carried by the stock l and preferably housed therein as is illustrated in Figure By extending the shank 7 and engaging the desired pawl 10 in its associated groove 9 the resultant pressure or stress imposed upon the stock l and preferably through the crank 3 will result in the desired rotation of the chuck 8 whereby a substantially auto- `matic rotation of the chuck is accomplished.

As herein disclosed the pawls 10 are pivotally supported within an internal cham# bei' 11 suitably formed in the end `portion of the stock 1 opposed to the chuck 8, the pawls 10 being provided with theV cani tail pieces or extensions l2 with which is adapted to coact the button 14 having sliding movement in a. direction circumferentially of the stock and as provided by theslot 16.

fis illustrated in Figure 3, the but-ton 14k is in a position to effect rotation of the chuck 8in one direction and by moving said button 14 to theV limit of its movement in the opposite direction, the chuck 8 will be caused to reversely rotate. With the chuck centrally positioned with respect to the pawls l0 the springs 15 coacting with the tail pieces or extensionslQ of the pawls 10 will cause both of said pawls to engage within their grooves 9 whereby the Shanks 7 andthe chuck 8 are effectively held against rotation independently'of the stock 1 and under which conditions the crank 3 is adapted to be employed.

lt will also be understood that when the pawls 6 at each side of the crank 3 are engaged withthe toothed wheel 5, the stock l will be caused to continuously rotate in either direction without coaction.

From the foregoing description it is thought to be obvious that a tool brace con-V structed in accordance with myV invention is particularly well adapted for use 'by reason of the convenience and facility with which itmay be assembled and operated,`

and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason l do 1in p notJ Wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in Carrying out my invention in practice except as hereinafter Claimed.

I Claim:

A device of the class described oomprisf ing` :i tubular Stock, :i crunk in swiveled connection therewith, the connected portion of the crank being' provided with a bearing, the connected portion of the stock extending within such bearing and constituting a toothed wheel, n pun'i carried by the crank at. either side of the bearing und engagenble with the toothed Wheel, a shank freely insertible Within the Stock :1nd haring movement lengthwise thereof, a chuck carried by the outer end portion of the shank, and Coact-ing` means Carried by the shank and stock to rotate the shank and ehuek independently of the stock after the shank hns been projeeted and stress imposed upon the stock.

In test-imon)y whereof I hereunto niix my signature.

ROY DOW HUTSON. 

